Added short style guide. Updated readme.

Author: pmediano

PythonStyleGuide.md

@@ -0,0 +1,47 @@
+Notes about coding style
+-----------------------
+
+As noted by one of your colleagues after the tutorial, good coding style is
+fundamental. It is specially important when someone has to mark your code. To
+help yourself write pretty Python code, your anonymous style-hero classmate and
+I recommend the package `flake8`, that you can easily pip inside your virtual
+environment:
+
+```
+pip install flake8
+```
+
+Now you can run the command `flake8` on any Python script and it will tell you
+where and why it looks ugly, according the the world-famous **PEP8 Style
+Guide**. PEP8 is a standard of good coding practice and should be respected,
+particularly in collaborative projects.
+
+That said, I politely disagree with some of the conventions in PEP8, and I have
+deliberately chosen to not follow them in the exercise scripts. These are the
+specific PEP8 sections I respectfully ignore:
+
+*Disclaimer*: all the lines below start with "I" because it's all my personal
+preference.  But those are like opinions --- everybody has one. You don't have
+to stare at mine for any longer than you deem appropriate.
+
+1. I prefer indentations with 2 spaces rather than 4.
+
+2. I think it's a good idea to leave an empty line at the end of a script.
+
+3. I'm ok with leaving extra spaces at the sides of operators to align several
+statements.
+
+4. I tend to begin code "sections" with double-hashed comments, i.e. coments
+starting with '## '. This disagrees with the PEP8 mantra that forces all
+comments to start with '# '.
+
+To stop flake8 from complaining all the time about these, I style-check my
+python scripts with the following command:
+
+flake8 myFancyScript.py | grep -Ev 'E221|E111|E265|W391'
+
+**Some marks of the assessed coursework are reserved for style and clarity**.
+We won't strictly enforce all PEP8 guidelines, but it's probably a good idea
+to try to follow it.
+
+

Python_Tutorial/SelectedComments.md

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+Selected student comments after the Python tutorial
+---------------------------------------------------
+
+Thanks to everyone who came along and for the helpful feedback. I've taken the
+priviledge of correcting some typos in your messages. Here are some of the
+tutorial Python-esque afterthoughts:
+
+- It's a snake?
+
+- Maybe you can also suggest students to go to
+  https://www.codecademy.com/en/tracks/python where the Python course is a very
+  good learning resource.
+
+- Please use a common coding style (I suggest flake8). It makes the code easier
+  to read and it teaches the beginners good coding from the beginning.
+
+- Why not pie thon?
+
+- Ssssssss
+

README.md

@@ -29,6 +29,8 @@ notifications.
 
 ## News
 
+- 26.X.2015: Added Python style guide.
+- 26.X.2015: Added Ex1 solutions and the rest of Ex2.
 - 22.X.2015: Added slides for the Python tutorial. Added some code for Ex2.
 - 19.X.2015: Replaced .docx files with .pdf files to make equations readable.
 - 18.X.2015: Added code and problem sheet for Exercise 1.